SU126227A1 - Method of isomerization of 3-methyl-3-ol-4-in-penta-en 1 to 3-methylpent-en-2-yn-4-ol-1 using ion exchange resins - Google Patents
Method of isomerization of 3-methyl-3-ol-4-in-penta-en 1 to 3-methylpent-en-2-yn-4-ol-1 using ion exchange resinsInfo
- Publication number
- SU126227A1 SU126227A1 SU631161A SU631161A SU126227A1 SU 126227 A1 SU126227 A1 SU 126227A1 SU 631161 A SU631161 A SU 631161A SU 631161 A SU631161 A SU 631161A SU 126227 A1 SU126227 A1 SU 126227A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- methyl
- penta
- isomerization
- ion exchange
- exchange resins
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Существующий способ изомеризации третичного карбинола тил-нентаеи-1-ин-4-ол-3 в нервичный карбинол З-метил-нента-еи-2-ин4-ОЛ-1 в синтезе витамина А осуществл ют посрадсгвом длительного (40-60 час.) шеремещивани с 10%-иой серией кислотой.The existing method of tertiary carbinol isomerization of tynentaei-1-yn-4-ol-3 to the nervous carbinol Z-methyl-nantae-ei-2-in4-OL-1 in the synthesis of vitamin A is carried out after a long time (40-60 hours. ) Shifting with a 10% acid batch.
Изобретение выгодно отличаетс от известного снособа, так как реакци аллильной перегруппировки осуществл етс с высоким выходом в водном или водно-спиртовом растворе при тюмопш полистирольиых ионообменнь х смол с сульфогруппой типа КУ-2 или типа амберлита Р-120.The invention is advantageously different from the known method, since the reaction of the allyl rearrangement is carried out with a high yield in an aqueous or aqueous-alcoholic solution during polystyrene tomopes ion exchange resins with sulfo group of type KU-2 or type Amberlite P-120.
Пример. 1 вес. ч. 3-метил-пента-еп-1-И11-4-ол-3, 1 вес. ч. воздущгюсухого катноцита помещают в 6 объемных частей дистиллированной воды. Катионнт КУ-2 предварительно нромывают 1Н раствором серной кислоты, а затем дистиллированной водой до отсутстви в фильтрате иона SO/.Example. 1 weight. including 3-methyl-penta-en-1-I11-4-ol-3, 1 weight. including blown katnotsita placed in 6 parts by volume of distilled water. The cationic KU-2 is pre-sprayed with a 1N solution of sulfuric acid and then with distilled water until the SO / ion is not present in the filtrate.
Перемецшвают реакционную массу в течение 3-х час. при 50°, затем смолу отдел ют декантацией и тщательно промывают небольщнми порци ми воды. Промывные воды присоедин ют к ocHOBHO.viy раствору и последний экстрагируют органическими растворител ми. Экстракт сущат, растворитель отгон ют, остаток фракционируют. Получают 3-метил-пента-ен-2-ин-4-ол-1 с т. кип. 87-89° при 32 мм, «g 1,4820. Выход 0,71 вес. ч. 71%.Remesh the reaction mass for 3 hours. at 50 ° C, then the resin is decanted and thoroughly washed with small portions of water. The washings are added to the ocHOBHO.viy solution and the latter is extracted with organic solvents. The extract is present, the solvent is distilled off, the residue is fractionated. Get 3-methyl-Penta-en-2-yn-4-ol-1 with so Kip. 87-89 ° at 32 mm, "g 1.4820. Output 0.71 wt. h. 71%.
Предмет изобретени Subject invention
Способ изомеризации 3-метил-3-ол-4-ин-пента-ен-1 в 3-метил-пента-ен-2-ин-4-ол-1 с помощ,ью ионообменных смол, отличающийс тем, что, с целью ускорени процесс ведут с помощью полистирольных сульфоиомнообменных смол в водном растворе или в с.меси воды и другого Пол рного растворител .The method of isomerization of 3-methyl-3-ol-4-in-penta-en-1 to 3-methyl-penta-en-2-yn-4-ol-1 with the aid of ion exchange resins, characterized in that In order to accelerate the process, they are carried out with the help of polystyrene sulfonic resin resins in an aqueous solution or in a mixture of water and another Polar solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU631161A SU126227A1 (en) | 1959-06-16 | 1959-06-16 | Method of isomerization of 3-methyl-3-ol-4-in-penta-en 1 to 3-methylpent-en-2-yn-4-ol-1 using ion exchange resins |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU631161A SU126227A1 (en) | 1959-06-16 | 1959-06-16 | Method of isomerization of 3-methyl-3-ol-4-in-penta-en 1 to 3-methylpent-en-2-yn-4-ol-1 using ion exchange resins |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884395632A Addition SU1648506A2 (en) | 1988-03-21 | 1988-03-21 | Fire blocker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU126227A1 true SU126227A1 (en) | 1959-11-30 |
Family
ID=48397545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU631161A SU126227A1 (en) | 1959-06-16 | 1959-06-16 | Method of isomerization of 3-methyl-3-ol-4-in-penta-en 1 to 3-methylpent-en-2-yn-4-ol-1 using ion exchange resins |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU126227A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009144328A1 (en) * | 2008-05-30 | 2009-12-03 | Dsm Ip Assets B.V. | Process for the rearrangement of allyl alcohols |
-
1959
- 1959-06-16 SU SU631161A patent/SU126227A1/en active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009144328A1 (en) * | 2008-05-30 | 2009-12-03 | Dsm Ip Assets B.V. | Process for the rearrangement of allyl alcohols |
| CN102046571B (en) * | 2008-05-30 | 2015-04-29 | 帝斯曼知识产权资产管理有限公司 | Process for the rearrangement of allyl alcohols |
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